Inkjet printing apparatus and display panel manufacturing method using the same
AssigneeSamsung Display Co., Ltd.
InventorsJINHO HYUN, HEECHANG YOON, HYOUNG SUB LEE, HYEMIN LEE
Life of this patent
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Abstract
An inkjet printing apparatus includes: a stage, which reciprocates in forward and reverse directions opposite to each other and has a target substrate disposed thereon; an inspection device including a film disposed outside the stage and a measurement unit which measures an inspection pattern provided on the film; and a head assembly, which moves along one direction crossing the forward direction and has a plurality of heads which supplies a liquid composition to the target substrate. The head assembly moves in the one direction to overlap the film and sprays the composition onto the film to form an inspection pattern.
Claims6
A display panel manufacturing method using an inkjet printing apparatus comprising a stage, a head assembly, and an inspection device including a film and a measurement unit, the method comprising:
- performing a bidirectional printing;
- and
- inspecting a state of the head assembly,
- wherein the performing of the bidirectional printing includes:
- aligning the head assembly over a target substrate disposed on the stage,
- spaying, onto the target substrate, a liquid composition contained in the head assembly,
- moving the stage in a forward direction so that a first spray of the composition is performed on a first region of the target substrate, and
- moving the stage in a reverse direction opposite to the forward direction so that a second spray of the composition is performed on the first region, and
- wherein the inspecting of the state of the head assembly includes:
- aligning the head assembly over the film,
- forming an inspection pattern by spraying the composition onto the film, and
- checking the inspection pattern.
Dependencies are inferred from the claim text.